- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
153
Static Blemish Detection Mode
There are two modes, which are manual mode and auto mode, in static blemish detection mode.
• Manual mode
The detected data are written to EEPROM by manual operation, after blemish detection in manual mode.
The parameters shown in the following table are used in blemish detection of manual mode.
• Automatic mode
The detected data are written to EEPROM automatically, after blemish detection in auto mode.
The parameters shown in the following table are also used in blemish detection of auto mode.
The static blemish detection is set by the parameters of the following table.
Table 11.1-4 The setting parameters of static blemish detection
Parameter
Description
ADJMODE
CAT12_Byte2
Switching adjustment modes
BLMDETFIN CAT12_Byte4_bit6
End
flag
of the static blemish detection
BLMDETAGC CAT21_Byte1
The setting value of AGC gain operating the
static blemish detection
OPSHBLMDET CAT21_Byte2_bit1
The automatic static blemish detection
0:OFF 1:ON
The static blemish detection procedure is shown below.
• Manual mode
1. Shade CCD by closing the iris of the lens.
2. The value of the AGC gain under blemish detection is set up by BLMDETAGC.
3. Set OPSHBLMDET to 0[h].
4. Set ADJMODE to 22h and it starts detection.
5. After detection, BLMDETFIN is set to 1[h]. And read the category.
6. Write the data of CAT11 (BLMDET1) to EEPROM
7. Set ADJMODE to 0 and return to the normal operation mode.
• Automatic mode
1. Shade CCD by closing the iris of the lens.
2. The value of the AGC gain under blemish detection is set up by BLMDETAGC.
3. Set OPSHBLMDET to 1[h].
4. Set ADJMODE to 22[h] and it starts detection.
5. After detection, BLMDETFIN is set to 1[h]. And read the category.
6. Set ADJMODE to 0[h] and return to the normal operation mode.